package com.meitianhui.convenitenbuy.util;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSession;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

/**
 * Created by Administrator on 2016/4/29.
 */
public class BlurImageUtil {
    public static Bitmap returnBitmap(String url) {
        Bitmap bitmap = null;
        InputStream in = null;
        BufferedOutputStream out = null;
        try
        {
            URL url1 = new URL(url);
            if (url1.getProtocol().toUpperCase().equals("HTTPS")){
                //接收全部的证书
                trustAllHosts();
                HttpsURLConnection urlConnection = (HttpsURLConnection)url1.openConnection();
                //设置https不用证书验证
                urlConnection.setHostnameVerifier(DO_NOT_VERIFY);
                InputStream inputStream = urlConnection.getInputStream();
                in = new BufferedInputStream(inputStream,1024);
                final ByteArrayOutputStream dataStream = new ByteArrayOutputStream();
                out = new BufferedOutputStream(dataStream, 1024);
                copy(in, out);
                out.flush();
                byte[] data = dataStream.toByteArray();
                bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
                data = null;

            }

            return bitmap;

        }
        catch (IOException e)
        {
            e.printStackTrace();
            return null;
        }

    }

    public final static HostnameVerifier DO_NOT_VERIFY = new HostnameVerifier() {
        public boolean verify(String hostname, SSLSession session) {
            return true;
        }
    };
    public static void trustAllHosts() {
        // Create a trust manager that does not validate certificate chains
        // Android use X509 cert
        TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
            public java.security.cert.X509Certificate[] getAcceptedIssuers() {
                return new java.security.cert.X509Certificate[] {};
            }

            public void checkClientTrusted(X509Certificate[] chain,
                                           String authType) throws CertificateException {
            }

            public void checkServerTrusted(X509Certificate[] chain,
                                           String authType) throws CertificateException {
            }
        } };

        // Install the all-trusting trust manager
        try {
            SSLContext sc = SSLContext.getInstance("TLS");
            sc.init(null, trustAllCerts, new java.security.SecureRandom());
            HttpsURLConnection
                    .setDefaultSSLSocketFactory(sc.getSocketFactory());
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    private static void copy(InputStream in, OutputStream out)
            throws IOException {
        byte[] b = new byte[1024];
        int read;
        while ((read = in.read(b)) != -1) {
            out.write(b, 0, read);
        }
    }
    /** 水平方向模糊度 */
    private static float hRadius = 1;
    /** 竖直方向模糊度 */
    private static float vRadius = 1;
    /** 模糊迭代度 */
    private static int iterations = 7;
    public static Bitmap BoxBlurFilter(Bitmap bmp) {
        int width
                = bmp.getWidth();
        int height
                = bmp.getHeight();
        int[]
                inPixels = new int[width
                * height];
        int[]
                outPixels = new int[width
                * height];
        Bitmap
                bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        bmp.getPixels(inPixels,
                0,
                width, 0,
                0,
                width, height);
        for (int i
             = 0;
             i < iterations; i++) {
            blur(inPixels,
                    outPixels, width, height, hRadius);
            blur(outPixels,
                    inPixels, height, width, vRadius);
        }
        blurFractional(inPixels,
                outPixels, width, height, hRadius);
        blurFractional(outPixels,
                inPixels, height, width, vRadius);
        bitmap.setPixels(inPixels,
                0,
                width, 0,
                0,
                width, height);
               try {
                   bitmap = Bitmap.createBitmap(bitmap, 5, 0, width - 10, height, null, false);
               }catch (Exception e){

               }
        return bitmap;
    }

    public static void blur(int[]
                                    in, int[]
                                    out, int width,
                            int height,
                            float radius)
    {
        int widthMinus1
                = width - 1;
        int r
                = (int)
                radius;
        int tableSize
                = 2 *
                r + 1;
        int divide[]
                = new int[256 *
                tableSize];

        for (int i
             = 0;
             i < 256 *
                     tableSize; i++)
            divide[i]
                    = i / tableSize;

        int inIndex
                = 0;

        for (int y
             = 0;
             y < height; y++) {
            int outIndex
                    = y;
            int ta
                    = 0,
                    tr = 0,
                    tg = 0,
                    tb = 0;

            for (int i
                 = -r; i <= r; i++) {
                int rgb
                        = in[inIndex + clamp(i, 0,
                        width - 1)];
                ta
                        += (rgb >> 24)
                        & 0xff;
                tr
                        += (rgb >> 16)
                        & 0xff;
                tg
                        += (rgb >> 8)
                        & 0xff;
                tb
                        += rgb & 0xff;
            }

            for (int x
                 = 0;
                 x < width; x++) {
                out[outIndex]
                        = (divide[ta] << 24)
                        | (divide[tr] << 16)
                        |
                        (divide[tg] << 8)
                        | divide[tb];

                int i1
                        = x + r + 1;
                if (i1
                        > widthMinus1)
                    i1
                            = widthMinus1;
                int i2
                        = x - r;
                if (i2
                        < 0)
                    i2
                            = 0;
                int rgb1
                        = in[inIndex + i1];
                int rgb2
                        = in[inIndex + i2];

                ta
                        += ((rgb1 >> 24)
                        & 0xff)
                        - ((rgb2 >> 24)
                        & 0xff);
                tr
                        += ((rgb1 & 0xff0000)
                        - (rgb2 & 0xff0000))
                        >> 16;
                tg
                        += ((rgb1 & 0xff00)
                        - (rgb2 & 0xff00))
                        >> 8;
                tb
                        += (rgb1 & 0xff)
                        - (rgb2 & 0xff);
                outIndex
                        += height;
            }
            inIndex
                    += width;
        }
    }

    public static void blurFractional(int[]
                                              in, int[]
                                              out, int width,
                                      int height,
                                      float radius)
    {
        radius
                -= (int)
                radius;
        float f
                = 1.0f
                / (1 +
                2 *
                        radius);
        int inIndex
                = 0;

        for (int y
             = 0;
             y < height; y++) {
            int outIndex
                    = y;

            out[outIndex]
                    = in[0];
            outIndex
                    += height;
            for (int x
                 = 1;
                 x < width - 1;
                 x++) {
                int i
                        = inIndex + x;
                int rgb1
                        = in[i - 1];
                int rgb2
                        = in[i];
                int rgb3
                        = in[i + 1];

                int a1
                        = (rgb1 >> 24)
                        & 0xff;
                int r1
                        = (rgb1 >> 16)
                        & 0xff;
                int g1
                        = (rgb1 >> 8)
                        & 0xff;
                int b1
                        = rgb1 & 0xff;
                int a2
                        = (rgb2 >> 24)
                        & 0xff;
                int r2
                        = (rgb2 >> 16)
                        & 0xff;
                int g2
                        = (rgb2 >> 8)
                        & 0xff;
                int b2
                        = rgb2 & 0xff;
                int a3
                        = (rgb3 >> 24)
                        & 0xff;
                int r3
                        = (rgb3 >> 16)
                        & 0xff;
                int g3
                        = (rgb3 >> 8)
                        & 0xff;
                int b3
                        = rgb3 & 0xff;
                a1
                        = a2 + (int)
                        ((a1 + a3) * radius);
                r1
                        = r2 + (int)
                        ((r1 + r3) * radius);
                g1
                        = g2 + (int)
                        ((g1 + g3) * radius);
                b1
                        = b2 + (int)
                        ((b1 + b3) * radius);
                a1
                        *= f;
                r1
                        *= f;
                g1
                        *= f;
                b1
                        *= f;
                out[outIndex]
                        = (a1 << 24)
                        | (r1 << 16)
                        | (g1 << 8)
                        | b1;
                outIndex
                        += height;
            }
            out[outIndex]
                    = in[width - 1];
            inIndex
                    += width;
        }
    }

    public static int clamp(int x,
                            int a,
                            int b)
    {
        return (x
                < a) ? a : (x > b) ? b : x;
    }
}
